Comparison of the economic performance of organic and conventional corn-soybean-winter wheat rotations in southwestern Ontario, Canada

IF 16.4 1区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Xueming Yang, Craig F. Drury, W. D. Reynolds, Mary-Anne Reeb
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引用次数: 0

Abstract

The economic viability of using summer-seeded legume cover crops (crimson clover, red clover, hairy vetch) as a primary nitrogen (N) source for an organic corn (Zea mays L.)-soybean (Glycine max (L.) Merr.)-winter wheat (Triticum aestivum L.) rotation was determined on a sandy loam soil in southwestern Ontario, Canada, by comparing gross profit for organic production (organic sources of N and phosphorus, no herbicides) to conventional production (no cover crops, synthetic fertilizers and herbicides added). Profits were determined for the initial three-year transition period from conventional to organic production (2015-2017), and for five years of certified organic production (2018-2022). During the transition period when conventional crop prices applied to both production systems, organic production profits (CAD $1148-1869 ha-1 per rotation) were lower than conventional profits (CAD $2126 ha-1 per rotation). During the certified organic period when price premiums were applied, organic soybean and corn profits (CAD $1995-2274 ha-1 and $2819-3195 ha-1 per year, respectively) were significantly greater than conventional soybean and corn profits (CAD $536 ha-1 and $1926 per ha-1, respectively). Winter wheat profits were slightly higher for organic production (CAD $426 to $825 ha-1 per year) than for conventional production (CAD $371 ha-1 per year). During the certified organic production period, profits from the three year rotations were CAD $5533-6153 ha-1 for organic production, and CAD $2860 ha-1 for conventional production. It was concluded that an organic rotation of corn-soybean-winter wheat/legume cover crop can be economically viable and more profitable than conventional production on sandy loam soil in southwestern Ontario.
加拿大安大略省西南部有机玉米-大豆-冬小麦轮作与常规玉米-大豆-冬小麦轮作的经济效益比较
在加拿大安大略省西南部的沙质壤土上,通过比较有机生产(有机氮源和磷源,不使用除草剂)和常规生产(不使用覆盖作物,不使用除草剂)的毛利润,确定了使用夏季播种的豆科覆盖作物(深红三叶草、红三叶、毛茸茸的薇菜)作为有机玉米(Zea mays L.)-大豆(Glycine max (L.) Merr.)-冬小麦(Triticum aestivum L.)轮作的主要氮源的经济可行性。在加拿大安大略省西南部的沙质壤土上,通过比较有机生产(有机氮和磷来源,不使用除草剂)和常规生产(不种植覆盖作物,添加合成肥料和除草剂)的毛利润,确定了有机玉米(Zeays L.)-大豆(Glymine max L.Merr)-冬小麦(Triticumestivum L.)轮作的利润。确定了从常规生产到有机生产的最初三年过渡期(2015-2017 年)以及认证有机生产的五年期(2018-2022 年)的利润。在两种生产体系都适用常规作物价格的过渡期内,有机生产利润(每公顷轮作 1148-1869 加元)低于常规生产利润(每公顷轮作 2126 加元)。在采用溢价的认证有机期,有机大豆和玉米的利润(每年分别为 1995-2274 加元/公顷和 2819-3195 加元/公顷)明显高于常规大豆和玉米的利润(分别为 536 加元/公顷和 1926 加元/公顷)。冬小麦的有机生产利润(每年每公顷 426 加元至 825 加元)略高于常规生产(每年每公顷 371 加元)。在认证有机生产期间,三年轮作的利润为:有机生产 5533-6153 加元/公顷-1,常规生产 2860 加元/公顷-1。结论是,在安大略省西南部的沙质壤土上,玉米-大豆-冬小麦-豆科覆盖作物的有机轮作在经济上是可行的,而且比常规生产更有利可图。
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来源期刊
Accounts of Chemical Research
Accounts of Chemical Research 化学-化学综合
CiteScore
31.40
自引率
1.10%
发文量
312
审稿时长
2 months
期刊介绍: Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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